Directory.Exist return strange result about longpath HOT 4 CLOSED

Here is a screenshot when debugging the source code (Common.cs line 70)
The path doesn't exists (the drop folder exists, but not the "Clients _ Quatre" folder)
I think the problem comes from the fact that Directory.IsDirectory(-1) return true ?

This is the same path, but executed from nunit test:

The problem comes from Marshal.GetLastWin32Error(); which return 0 (Common.cs line 114)
In a unit test, it returns 2. But in the namespace extension application, it returns 0

from longpath.

See #13

from longpath.

Still trying to repo, if you could create a unit test gist (or just paste code in the issue) that repros it, that would help me get to it sooner :)

from longpath.

I assume the PR from #13 fixes this

from longpath.